Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554606 | Magnetic recording medium | Takato Karashima | 1985-11-19 |
| 4480004 | Magnetic recording medium | Fumio Togawa, Takato Karashima | 1984-10-30 |
| 4305993 | Magnetic recording medium | Shigeyuki Hosoo | 1981-12-15 |
| 4275113 | Magnetic recording medium | Osamu Saito, Jozo Shimizu | 1981-06-23 |
| 4223361 | Magnetic recording medium | Takashi Yamase, Sadao Yamashita, Kunio Mizushima | 1980-09-16 |